Diagonal Sudoku Puzzle (Fun With Sudoku #291)

X Sudoku or Diagonal Sudoku Puzzle is very well known Sudoku type which is now getting popular. Some of the Diagonal Sudoku puzzles created by me earlier were liked very much by the readers. So here is another Diagonal Sudoku Puzzle which is on the harder side in level of difficult. It will be interesting to know your timings to solve this Diagonal Sudoku puzzle. I am publishing this Diagonal Sudoku puzzle as part of Fun With Sudoku Series as 291st Sudoku Puzzle in this Series.Theme of this Diagonal Sudoku puzzle is Semi Circle.